• Title/Summary/Keyword: 두개저

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A Semilongitudinal Study on Cranial Base, Maxillary and Mandibular Growth of Korean Children Aging 7 to 17 Years Old (한국인 7-17세 아동의 두개저, 상악, 하악의 성장에 관한 준종단적 연구)

  • Sohn, Byung-Wha;Kim, Hyung-Soon
    • The korean journal of orthodontics
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    • v.29 no.1 s.72
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    • pp.23-35
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    • 1999
  • Lateral cephalograms or 251 males md 286 females were taken and pubertal growth pattern or cranial base, maxillary and mandible of 7 to 17 years old Korean children was evaluated. 10 landmarks and 16 analytical measurements were evaluated. Analytical measurement and annual difference for each age group was calculated and tested for statistical significance. Analytical measurements were classified into three groups which were cranial base, maxillary and mandibular measurements and also classified into make and female measurements. Following results were achieved. 1. The circumpuberal growth spurt was earlier in Korean females than in males. 2. Cranial base, maxilla and mandible showed circumpuberal growth. The cranial base showed a relatively smaller amount of growth than the facial complex. 3. Middle and posterior cranial base length showed a floater increase than anterior cranial base length and circumpuberal growth spurt was also more definite. 4. the forward and downward growth or maxilla results from maxillary growht itself and transposition or the maxilla due to circumsutural growth aroud the maxilla. Ar-ANS and Ar-Pr which represent maxillary position relative to the cranial base showed more growth than ANS-PNS which represents maxillary bone growth. 5. mandible showed more vertical growth than horizontal growth but without significance. 6. Alveolar gwoth of maxilla and mandible show maximum growth rate of the time of permanent teeth eruption following loss of deciduous teeth . After this period alveolar growth shows a decreasing tendency.

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A comparative study on head posture and craniofacial morphology between koreans and scandinavian caucasians (한국인과 스칸디나비아계 백인의 두부자세와 두개안면구조의 형태에 관한 비교연구)

  • Oh, Yong-Duck;Yoon, Young-Jooh;Kim, Kwang-Won
    • The korean journal of orthodontics
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    • v.29 no.6 s.77
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    • pp.707-720
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    • 1999
  • The purpose of this study was to evaluate racial differences In head posture and the influence of head posture to the craniofacial morphology. The sample group of this study was made up of 51 Korean males and 120 Scandinavian Caucasian males. From the comparison of the cranio-cervical angle and the variables of craniofacial morphology between them, the following results were obtained. 1. The cranio-cervical angle (NSL/OPT) was on average 9.28 degrees larger In Koreans. 2. The length of the anterior cranial base (N-S) was on average 4.66mm shorter in Koreans. 3. The length of the maxillary base (sp-pm and ss-pm) were on average 2.75mm and 4.65mm shorter in Koreans respectively, the anterior maxillary height (n-sp) was on average 2.60mm longer, the posterior dimension (s-pm) was found to be 2.06mm longer in Koreans, and the maxillary inclination (NSL/NL) was identical in both samples. 4. The mandibular body length (pg-tgo) and ramus height (ar-tgo) were identical in the two groups, but the genial angle (ML/RL) was 3.22 degrees smaller and the mandibular plane inclination (NSL/ML) was 2.44 degrees larger in Koreans 5. The maxillary prognathism (s-n-sp and s-n-ss) and the mandibular prognathism (s-n-sm) were identical in both samples. 6. The sagittal jaw relationship (ss-n-pg) was 1.44 degrees larger in the Korean sample, but the vortical jaw relationship (NL/ML) was not significantly different. 7. The anterior facial height (n-gn) was 5.57mm longer in the Korean sample. 8. The mandibular alveolar prognathism (CL/ML) was 5.71 degrees greater and the interincisal angle (ILs/ILi) was 3.08 degrees more acute in Koreans. Taken together these results, craniofacial morphology can be influenced by the head posture defined by cranio-cervical angulation.

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The effect of growth hormone treatment on craniofacial growth in short stature children (저신장 소아에서 성장호르몬 치료가 두개안면골 성장에 미치는 영향)

  • Chung, Sung-Ho;Kim, Jin-Wook;Park, Yong-Hoon;Hwang, Chung-Ju;Lee, Hee-Kyung
    • The korean journal of orthodontics
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    • v.40 no.4
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    • pp.227-238
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    • 2010
  • Objective: The purpose of this study was to analyze the effect of growth hormone treatment (GHT) on craniofacial growth in children of short stature. Methods: Nineteen untreated children of short stature were referred from the Pediatric Department, Yeungnam University Hospital as a subject group. All subjects had lateral cephalograms taken before, after 1 year and after 2 years of growth hormone treatment. As a reference group, we selected 19 normal children with paired sampling who matched the subjects' age and sex, from the Department of Orthodontics, Kyungpook National University Hospital. Results: Before GHT, anterior cranial base length and upper posterior facial height, posterior total facial height, mandibular ramus length, and mandibular corpus length were significantly smaller in the reference group. In angular craniofacial measurements, saddle angle and mandibular plane angle were larger. SNA and SNB were smaller in the reference group. After two years of GHT, growth hormone accelerated growth in several craniofacial components. The posterior total facial height, the anterior, posterior cranial base length, and the mandibular ramus length were increased. And the difference in mandibular plane angle and ANB values compared with the reference group was decreased. Conclusions: GHT over 2 years leads to a craniofacial catch-up growth tendency, which is pronounced in interstitial cartilage and condylar cartilage.

The Relationship between the Growth of Cranial Base and the Position of Maxilla, Mandible in Complete Unilateral Cleft Lip and Palate Patients (완전 편측성 순구개열자의 두개저 성장과 상,하악골 위치의 상관 관계에 관한 연구)

  • Baek, Jae-Ho;Son, Woo Sung
    • The korean journal of orthodontics
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    • v.30 no.4 s.81
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    • pp.399-411
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    • 2000
  • This study was designed to evaluate the correlations between the morphology and growth of cranial base and the position of nasomaxillary complex and mandible in complete unilateral cleft lip and palate patients. Craniofacial skeletal morphology Pattern was analyzed on the lateral cephalometric radiographs of the 100 subjects of complete unilateral cleft lip and palate group and the 100 normal grower group and each group was divided three sub-groups by age-range like spheno-ethmoidal synchodrosis growing group, spheno-occipital synchondrosis growing group and finished synchondrosis growth group. These data were statistically analyzed to examine significant difference between both groups and between each sub-groups. The results of this study were as follows: 1. In complete unilateral cleft group, the length, thickness of clivus, and the rate of increase in length of clivus showed smaller amount by adolescence. The anterior length of cranial base and the rotation pattern of clivus with age showed no significant difference between two group. 2. In complete unilateral cleft group, nasomaxillary complex were located more posteriorly. This difference between two groups is larger by adolescent group than adult. Vertical position showed no significant difference between two groups. There was significant correlation between the cranial base of cleft group and the horizontal measurements(p<0.01). PtmS showed no significant increment in cleft group. This showed the deficiency of growth in posterior part of maxilla. 3. In mandible, there was no significant difference between normal group and complete unilateral cleft group but articular angle showed significantly smaller in cleft group than in normal one. And the measurements of nasomaxillary complex position, cranial base and the position of mandible had significant correlation(p<0.01).

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The Effect of Low-Frequency Repetitive Transcranial Magnetic Stimulation on Treatment-Resistant Tourette's Syndrome among Children and Adolescents : An Open-Label Study (치료저항성 뚜렛장애를 가진 소아청소년에서 저빈도 반복적 경두개자기자극술의 효과 : 오픈 라벨 연구)

  • Lee, Young-Ji;Chae, Jin Hyuk;Seo, Wan Seok
    • Journal of the Korean society of biological therapies in psychiatry
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    • v.24 no.3
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    • pp.239-246
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    • 2018
  • 목 적 : 본 연구의 목적은 치료저항성 뚜렛장애를 가진 소아 청소년들에 대해서 보조운동영역을 표적으로 한 저빈도 반복적 경두개자기자극술의 효과를 평가하는 것이다. 방 법 : 이 연구는 미국정신의학회 진단기준 및 통계편람, 제 4판을 기준으로 뚜렛장애로 진단받은 10명의 소아 청소년(평균연령 $12.56{\pm}1.04$세)을 대상으로 하였다. 모든 참가자들은 1년 이상 지속적으로 충분한 용량의 약물치료를 받았음에도 불구하고 한국판 예일 틱 증상 평가척도(YGTSS) 20점 이상, 임상인상척도(CGI-TS) 4점 이상을 받았다. 참가자들은 보조운동영역을 표적으로 1 Hz 반복적 경두개자기자극 치료를 매일 20분간 받았으며, 총 20회 치료를 받았다. YGTSS, CGI-TS 및 이상반응 체크리스트는 연구 시작 전과 연구 시작 후 4, 8, 12주에 시행되었다. 결 과 : 틱 증상은 연구 12주차까지 호전된 상태로 지속되었으며, YGTSS와 CGI-TS가 통계적으로 유의하게 감소하였다. 특히 음성 틱 점수의 감소가 운동 틱 점수의 변화보다 전체 YGTSS 점수의 감소에 큰 역할을 한 것으로 나타났다. 그리고 전체 10명의 참가자 중 9명이 심각한 부작용 없이 연구를 끝까지 완료하였다. 결 론 : 본 연구는 보조운동영역을 표적으로 한 저빈도 반복적 경두개자기자극술이 치료 저항성 뚜렛장애를 가진 소아 청소년들에게 효과적이고 안전한 치료도구가 될 수 있음을 시사한다. 이러한 반복적 경두개자기자극술의 치료효과를 확정하기 위해서는 보다 많은 환자를 대상으로 한 잘 통제된 연구가 필요할 것이다.

A STUDY ON THE MORPHOLOGICAL CHANGES IN CHILDREN WITH CLASS I AND III MALOCCLUSIONS: CEPHALOMETRIC ANALYSIS (I급과 III급 부정교합 어린이의 두개안면골 형태의 변화에 관한 연구)

  • Hong, Han-Young;Choi, Yeong-Chul
    • Journal of the korean academy of Pediatric Dentistry
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    • v.34 no.4
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    • pp.599-612
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    • 2007
  • The present study was designed to compare the morphological and structural differences of craniofacial structures among 146 children with Class I and Class III malocclusions. The results below were obtained from the study. 1. Sphenoethmoidal synchondrosis continues to grow later in Class III. 2. Anteroposterior length of the nasomaxillary complex was significantly shorter in Class III, but the height of the nasomaxillary complex was similar. 3. Mandibular length and mandibular body length were longer in Class III, but had no statistical significance. Lower anterior facial height was shorter in Class III, but had no statistical significance. 4. Dentoalveolar height was similar between Class I and Class III. 5. In Class I, anterior cranial base took part in the anteroposterior length of the nasomaxillary complex and the mandible. 6. In Class III, anterior cranial base and middle cranial base had higher correlation with the mandible with aging. These results suggest that there exist a little differences between Class I and Class III malocclusions at age $7{\sim}11$, but growth patterns are mostly similar. Therefore it is necessary to correct Class III malocclusions at an early age before skeletal differences appear.

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